diff --git a/src/FFMpeg/FFMpeg.php b/src/FFMpeg/FFMpeg.php
index 3b02369..83e8e85 100644
--- a/src/FFMpeg/FFMpeg.php
+++ b/src/FFMpeg/FFMpeg.php
@@ -195,7 +195,7 @@ class FFMpeg extends Binary
 
         $cmd_part2 = '';
 
-        if ($format->getWidth() && $format->getHieght()) {
+        if ($format->getWidth() && $format->getHeight()) {
             $cmd_part2 .= ' -s ' . $format->getWidth() . 'x' . $format->getHeight();
         }